Question

Pep39. Which one of the given is true
if a substance has a PH value of 4?
O The substance is a base
O The substance is an acid
The substance is a neutral
substance
O
O None
O Other:​

Answer 1

Jo bhi substance Ka pH 7 se Kam hoga wo acidic hoga or 7 se niche Wala base hoga samje ki Nahi

Answer 2

Answer:

The answer is option b) The substance is an acid.

Step-by-step explanation:

Any substance which has a ph level of less than 7 is acid, 7 is neutral and more than 7 is a base. So less than 7 is acidic.

A pH of less than 7 is acidic. A pH greater than 7 is basic. The pH scale works on logarithmic functions and as a result, each whole pH value if below 7 is ten times more acidic in nature than the next higher value. For example, pH 3 is ten times more acidic than pH 4, and 100 times (10 times 10) more acidic than pH 5.

Therefore, If a substance has a Ph value of 4, it will be considered an acid.

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